Window sill



March 3, 1931. W, VAN ALEN 1,794,809

WINDOW SILL Filed Sept. 18, 1929 INVENTOR ATTORN EY Patented Mar. 3, 1931 UNITED STATES PATENT oFFlcr;

WILLIAM VAN ALIEN, OF BROOKLYN, NEW 'YORK WINDOW sm.

Application led September` 18, 1929. Serial No. 393,365.

Thev present invention relates to window sills and is more particularly directed toward a metal window sill adapted for use inY brick.

joints are exposed to the weather. As' these water and frost to get into the joints, soften and disintegrate the cement and mortar employed, thus gradually Washing it away and weakening the structure, and possibly-permitting water to get tothe inside of the wall.

The present invention contemplates a metal window sill, preferably in the form of a strip of non-corrosive metal such as aluminum, which is built into the building during its construction and which covers the joints in the brick, thereby preventing the weathering of the joints. The metal window sill contemplated in' the present invention is placed in position by the bricklayers during the construction of the building and is securely held in` place by the brick and mortar.. It overlies the brick andis adapted to receive the drain;-

age from the sub-sill of the window frame and is preferably provided with a drip to carry the w-ater away from the wall so as to lprevent staining the brick work of the walls below.

The accompanying drawings show, for purposes of illustrating the present invention, one of the many possible embodiments in vwhich it may take form, it being understood that the drawings are illustrative of'the invention rather than limiting the same.

In these drawings Figure 1 is a front, elevational view of the lower part of a. window opening showing the improved sill in place. a

Figure 2 is a vertical, sectional view on the line 2-2 of Figure 1 looking in the direction of the arrows, and

Figure 3 is a horizontal, sectional view taken on the line 3-3 of Figure 1.

As shown in the drawings,l the improved window sill is indicated at 10. It is, for conparts of the building are exposed at all times, there is the maximum opportunity for` venience, illustrated asbeing employed in a 'window opening provided with a more or less conventional windowframe. The subsill of the window frame is indicated at 11, the stile at 12, the lower sash at 13, and the upper sash at 14.' f.

In constructing the building the face brick maybe laid in any desired manner according to the design. They are here 'shown as being -placed vertically, or on end, as indicated at 15. These brick will, of course, be separatedby mortar joints 16. Behind the brick, the wall may consist of tile or brick, as indicated .at 17. The brick 15` and tile 17 will form the floor of the window opening. The side walls of the`window opening are indi. cated as being made up of brick 18, 18.

-The metal window sill 10 preferably consists of a straight strip of extruded aluminum alloy, although a rolled section may be employed if desired. This strip has a sill-forming portion 20, an upwardly extending rear flanged portion 21, and downwardly extending front anged portion 22, preferably provided with a dripor drain 23 spaced from the front face of the brick wall.

In placing the Window sill in the wall, the brickayer lays the course of brick correspond'- ing with those indicated at 15. He then places the mortar or cement on top of these brick and places the metal window sill on this cement with the downwardly extending flange 22 against the front face of the brick already in place. Y

The metal window sill is mounted so that it drains the water outwardly, as indicated in drawings, and the total depth of the window sill, when in this loblique position, is equal to the space A, occupied by the joint. The width of the sill-forming strip is such that the upwardly extending rear flange 21 is in line'with the joint B behind the brick 18. This flange, as clearly indicated in Figure 3, comes behind this course of brick, and, as the vertical space occupied byU the windowsill equals the thickness of the mortar joint, it

will be .apparent that the brick 18 may be placed in the same position Aas they would be terlocking-the metal sill so that it camnot move. Instead of using cement underneath the Window sill, one can use caulking. The cement or caulking material is indicated at 24.

The window opening is then completed by the bricklayer in the usual manner. When the window frame is inserted in place, the sub-sill 1l extends over the top of the metal sill 10 and may be downwardly flanged, as indicated at 25. -Gaul-king material 26 is forced in underneath the sub-sill and against the lange 2l of the metal sill so as to prevent water from entering underneath the sub-sill. Caulking material 27 is placed along the stile 12 of the window frame, and will prevent water from `passing into the side joints.

It will be obvious from the foregoing that the metal window sill may be inserted in place by the bricklayers during the construction of the building and that, when placed in position, it will provide a permanent cover for the joints which would otherwise be exposed. rlhis makes it possible to avoid the use of more expensive stone or terra cotta window sills. The improved sill receives all the drainage from the window and carries it out beyond the face of the brick, allowing it to drain from the drip 23. This drip is arran'ged so that the water will tend to flow away from the wall, thereby avoiding staining the wall.

What is claimed is:

l. A metal window sill section in the form of a strip of uniform cross section and indeterminate length, the section being of Z- shaped cross section to present a narrow depending front flange for protecting the front tace of a building wall, a narrow upstanding rear flange, and a substantially lat sill forming portion interconnecting the flanges.

y2. A metal window sill section in the form of a strip of uniform cross section and indeterminate length, the section being of Z- sliaped cross section to present a narrow depending front flange for protecting the Jfront face of a building wall, a narrow upstanding rear flange, and a substantially flat sill torming portion interconnecting the flanges, the

`angular relation ofthe sill forming portion to the anges being such as to provide a slight downward and outward pitch when the flanges are Vertical.

Signed at NewpYork city, in the county of New York and State of New York, this 14th day ot September, 1929. y

WILLIAM VAN ALEN. 

